Mounting for silo-doors.



E. J. WAHLBERG.

MOUNTING FOR SILO DOORS.

APPLICATION man nor. 24. 1916;

1,2 13%., Patented Apr. 3, 1917.

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ERIC 3'. WAHLIBERG', 0F FORT BRAGG, CALIFORNIA, ASSIGNOR T0 ATLAS TANKMANU- FACTURING COMPANY, OF FORT BBAGG, CALIFORNIA, A CORPORATION OFCALI- IEOBNIA.

MOUNTING FOR SILO-DOORS.

Patented Apr. 3, 191% Application filed October 24,1916. Serial N 0.127,401.

To all whom it may concern:

Be it known that I, ERIC J. WAHLBERG, a citizen of the United States,residing at Fort Bragg, in the county of Mendocino and State ofCalifornia, have invented new and useful Improvements in Mountings forS1lo- Doors, of which the following is a specification.

This invention relates to silo doors, and has for its object to providea simplified and improved mounting therefor.

Silo doors ordinarily do not have hinges but work in vertical guides andare generally removed bodily on emptying the contents of the silo. Thisis objectionable on account of the possibility of breaking the doors andmisplacing the same. A hinge mounting is desirable for this purpose andthe hinge should be placed 011 the outside where it will not becontacted by the ensilage and yet permit the door to swing inwardly andrest flatly against the inside of the silo. The hinge must be small andcompact and not project in such way as to obstruct the ladder which isformed across the vertical opening or doorway.

One formwhich my invention may assume is exemplified in the followingdescription and illustrated in the accompanying drawings, in whichFigure 1 shows a side elevation of a portion of a silo embodying myinvention.

Fig. 2 shows a sectional view of the same on the line 22 of Fig. 1.

Fig. 3 shows a perspective view of the hinge mounting detached.

In the drawings I show a silo 10 having a vertical opening or doorway 11and a series of door sections 1.2 for closing said openings. The doorsections rest against the inside faces of vertical side jambs 13 andhorizontal cross-jambs l4, and each door or section has cleats 15 nearits top and bottom ends carrying ladder runs 16.

The hinge mounting is so constructed as to nest in the corner of thedoorway between the cleats 15, and comprise a pair of vertically spacedstraps 20 screwed or bolted to one of the side jambs 13 and formingbearings or supports for journal pins 21 to which cross-arms 22, formedintegrally on the ends of a vertical supporting member 23, areconnected. Connecting pivotally with the opposite ends of the cross-arms22, by means topics of this patent may be obtained for five cents each,by addressing the of pins 24:, are swinging links 25 having pivotalconnections at their opposite ends by means of pins 26 with straps 27secured to the adjacent end of the door at the outer face thereof.

By making the arms 22 and links 25 comparatively short, and folding themin V shaped relation, I avoid any obstruction of the ladder rungs 16 andyet obtain sufiicient movement of the parts to permit the door to swinginwardly clear of the doorway and rest with its inner face engaging theside of the silo. The arms 22 are slightly longer than the links 25 andare adapted to project through the doorway when the door is open andengage the edge of the side jamb, projecting just far enough beyond theinner face of the jamb to permit the links 25 to swing to one side withthe door, and allow the adjacent edge of the door to fit in the angle orcorner formed by the links 25 and arms 22. The vertical connectionbetween the arms 22 is preferably reinforced by a rib 28 and afiords animproved support for the door.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. A hinge for silo doors composed of a verticalmember having a cross arm on each end thereof, jamb straps pivotallyconnected with one end of each respective cross arm, links pivotallyconnected at one end with the respective other ends of the cross arms,and door straps pivotally connected to the other respective ends of theswinging links, said member in open position of the door beingengageable with the inner side edge of the jam 2. A hinge for silo doorscomposed of a vertical member, jamb straps pivotally connected with therespective ends of said member, links also pivotally connected at oneend with the respective ends of said memher, and door straps pivotallyconnected to the opposite respective ends of the links.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ERIC, J. WAHLBERG. Witnesses:

R. T. BoUnNs,

EUNIOE WHITE.

Washington, D. G.

